Array Methods

Ruby arrays grow with methods such as <<, and they can report their size or join their values.

array_methods.rb

items = ["pencil", "notebook"]
new_item = 

items << new_item

puts "count=#{items.length}"
puts "items=#{items.join(", ")}"

items = ["pencil", "notebook"]
new_item = 

items << new_item

puts "count=#{items.length}"
puts "items=#{items.join(", ")}"

items = ["pencil", "notebook"]
new_item = 

items << new_item

puts "count=#{items.length}"
puts "items=#{items.join(", ")}"

array method Array methods change or summarize the values stored in order.